8282800

素因数分解:

$2^4\times 5^2\times {\mathrm{20707}}^1$

素因数の和:20725

約数の個数: 30

約数和(自身を含む): 19900388

約数和(自身を除く): 11617588

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 20707, 41414, 82828, 103535, 165656, 207070, 331312, 414140, 517675, 828280, 1035350, 1656560, 2070700, 4141400, 8282800]

約数ペア:

[(1, 8282800), (2, 4141400), (4, 2070700), (5, 1656560), (8, 1035350), (10, 828280), (16, 517675), (20, 414140), (25, 331312), (40, 207070), (50, 165656), (80, 103535), (100, 82828), (200, 41414), (400, 20707)]